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In today's industrialized, highly developed information technology society, avoid damage power anomalies, in addition to as much as possible to improve the reliability of the power supply system, and on many occasions VRLA (Valve Regulated Lead Acid Battery A special) to provide back-up power supply, in order to reduce the impact of business-critical. VRLA battery working condition is good or bad, is essential for the operation of equipment. VRLA battery in operation due to charge less, over-discharge, the resistance increases reasons to fail, resulting in system or powered equipment can not operate normally or major accident. The VRLA batteries run status online management of power supply reliability is very important. In this paper, a coal mine explosion-proof and intrinsically safe type uninterruptible power supply VRLA batteries (two 12V/12AH) operating parameters online management system research as the background, technical parameters affect the working status of VRLA batteries and VRLA battery management methods conducted in-depth analysis and research, to design a complete set of VRLA battery information acquisition and processing system. The main contents include: VRLA battery technology parameters associated with the analysis of research, mainly including the basic working principle of the battery and affect the performance of a variety of manufacturing parameters and operating parameters; 2, VRLA batteries run parameters need for monitoring, including voltage , current, temperature and remaining battery parameters to complete the conventional methods of monitoring of these parameters, the design uses a battery-specific monitoring chips to complete the acquisition of the batteries operating parameters information, computing and storage, and processing of electromagnetic compatibility design; 3, VRLA charge characteristics and discharge characteristics of the battery, the conventional method for charging and unconventional some fast charging method, on this basis, a more suitable for the charging method of the present design, the design of the discharge of a battery protection circuit, and in order to avoid long-term regular floating charge automatic discharge; 4 real-time acquisition of VRLA batteries run parameters collected data via RS485 bus, while in the local LCD remote, can receive remote commands to control the battery discharge regularly. Management system by VRLA battery, operating parameters acquisition circuit, charge and discharge management circuits, data acquisition control circuit, and other components. The battery running state management circuit is capable of real-time management of the operational status of the battery, protect the battery working properly, battery efficiency and prolong battery life.
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